﻿using System;
using System.Collections.Generic;
using System.IO.IsolatedStorage;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Marketplace;
using Microsoft.Phone.Net.NetworkInformation;
using Microsoft.Phone.Shell;

namespace WP7Guide
{
    public partial class App : Application
    {
        private static MainViewModel viewModel = null;

         static LicenseInformation licenseInfo = new LicenseInformation();
         public static bool IsTrial
         {
             get
             {
#if DEBUG
                 MessageBoxResult result = MessageBox.Show("CLICK OK TO SIMULATE FULL LICENSE", "BUY NOW!",
                                                           MessageBoxButton.OKCancel);


                 if (result == MessageBoxResult.OK)
                 {
                     return false;
                 }
                 else
                 {
                     return true;
                 }
#else
                return licenseInfo.IsTrial();
#endif
             }
         }
        /// <summary>
        /// A static ViewModel used by the views to bind against.
        /// </summary>
        /// <returns>The MainViewModel object.</returns>
        public static MainViewModel ViewModel
        {
            get
            {
                // Delay creation of the view model until necessary


                if (viewModel == null)
                {
                    if (IsolatedStorageSettings.ApplicationSettings.Contains("epg"))
                    {
                        try
                        {
                            viewModel = (MainViewModel)IsolatedStorageSettings.ApplicationSettings["epg"];
                        }
                        catch (Exception)
                        {
                            
                            viewModel= new MainViewModel();
                        }
                    }
                    else
                    {
                        viewModel = new MainViewModel();
                    }
                    viewModel.LoadData();
                }

                return viewModel;
            }
        }

        private static SettingsViewModel _settings;
        public static SettingsViewModel Settings
        {
            get
            {
                // Delay creation of the view model until necessary


                if (_settings == null)
                {
                    if (IsolatedStorageSettings.ApplicationSettings.Contains("settings"))
                    {
                        try
                        {
                            _settings = (SettingsViewModel)IsolatedStorageSettings.ApplicationSettings["settings"];
                        }
                        catch (Exception)
                        {
                            _settings= new SettingsViewModel();
                        }
                    }
                    else
                    {
                        _settings = new SettingsViewModel();
                    }
                }

                return _settings;
            }
        }

        /// <summary>
        /// Provides easy access to the root frame of the Phone Application.
        /// </summary>
        /// <returns>The root frame of the Phone Application.</returns>
        public PhoneApplicationFrame RootFrame { get; private set; }

        /// <summary>
        /// Constructor for the Application object.
        /// </summary>
        public App()
        {
            // Global handler for uncaught exceptions. 
            UnhandledException += Application_UnhandledException;

            // Standard Silverlight initialization
            InitializeComponent();

            // Phone-specific initialization
            InitializePhoneApplication();

            // Show graphics profiling information while debugging.
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // Display the current frame rate counters.
                Application.Current.Host.Settings.EnableFrameRateCounter = true;

                // Show the areas of the app that are being redrawn in each frame.
                //Application.Current.Host.Settings.EnableRedrawRegions = true;

                // Enable non-production analysis visualization mode, 
                // which shows areas of a page that are handed off to GPU with a colored overlay.
                //Application.Current.Host.Settings.EnableCacheVisualization = true;

                // Disable the application idle detection by setting the UserIdleDetectionMode property of the
                // application's PhoneApplicationService object to Disabled.
                // Caution:- Use this under debug mode only. Application that disable user idle detection will continue to run
                // and consume battery power when the user is not using the phone.
                PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
            }

        }

        // Code to execute when the application is launching (eg, from Start)
        // This code will not execute when the application is reactivated
        private void Application_Launching(object sender, LaunchingEventArgs e)
        {
            //App.ViewModel.LoadData();
        }

        // Code to execute when the application is activated (brought to foreground)
        // This code will not execute when the application is first launched
        private void Application_Activated(object sender, ActivatedEventArgs e)
        {
            //App.ViewModel.LoadData();
        }

        // Code to execute when the application is deactivated (sent to background)
        // This code will not execute when the application is closing
        private void Application_Deactivated(object sender, DeactivatedEventArgs e)
        {
            if (App.viewModel != null)
            {
                viewModel.CancelLoad();
                viewModel.SaveData();
            }  
            
            Settings.SaveData();
        }

        // Code to execute when the application is closing (eg, user hit Back)
        // This code will not execute when the application is deactivated
        private void Application_Closing(object sender, ClosingEventArgs e)
        {
            if (App.viewModel != null)
            {
                viewModel.CancelLoad();
                viewModel.SaveData();
            }
            App.Settings.SaveData();
        }

        // Code to execute if a navigation fails
        private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
        {
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // A navigation has failed; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }

        private string _lastUnhandledHost="sample.dyndns.de:80";
        // Code to execute on Unhandled Exceptions
        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
        {
            if (e.ExceptionObject is WebException && NetworkInterface.GetIsNetworkAvailable())
            {
                if (App.Settings.FirstStart)
                {
                    App.Settings.FirstStart = false;
                    MessageBox.Show(AppResources.FirstStart);
                }
                if (App.Settings.DreamboxHost != _lastUnhandledHost)
                {
                    _lastUnhandledHost = App.Settings.DreamboxHost;
                    MessageBox.Show(AppResources.CommunicationError);
                }
                App.ViewModel.HideProgress();
                e.Handled = true;
            }
            else
            {
                MessageBox.Show(AppResources.Exception);
                e.Handled = true;                
            }


            if (System.Diagnostics.Debugger.IsAttached)
            {
                // An unhandled exception has occurred; break into the debugger
                System.Diagnostics.Debugger.Break();
            }
        }

        #region Phone application initialization

        // Avoid double-initialization
        private bool phoneApplicationInitialized = false;

        // Do not add any additional code to this method
        private void InitializePhoneApplication()
        {
            if (phoneApplicationInitialized)
                return;

            // Create the frame but don't set it as RootVisual yet; this allows the splash
            // screen to remain active until the application is ready to render.
            RootFrame = new PhoneApplicationFrame();
            RootFrame.Navigated += CompleteInitializePhoneApplication;

            // Handle navigation failures
            RootFrame.NavigationFailed += RootFrame_NavigationFailed;

            // Ensure we don't initialize again
            phoneApplicationInitialized = true;
        }

        // Do not add any additional code to this method
        private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
        {
            // Set the root visual to allow the application to render
            if (RootVisual != RootFrame)
                RootVisual = RootFrame;

            // Remove this handler since it is no longer needed
            RootFrame.Navigated -= CompleteInitializePhoneApplication;
        }

        #endregion
    }
}